Archived posting to the Leica Users Group, 2009/05/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]i'd heard about the Leica software correction logic in the D-LUX4, where the screen and JPGs and included software correct for distortion. out of curiosity, i used an open-source raw converter (libraw) rather than the bundled software to see what actually comes out of the camera. i shot images with camera set to store both jpg and raw, then converted the RAW (RWL) without the bundled software. in the RWL, the barrel distortion is clearly visible (ignore the other sharpness and contrast settings, i didn't try to make an exact match between RWL and JPG. the raw is also a little more loosely cropped--notice that some writing is visible on the bus at the extreme left on the RWL-derived image, and not on the jpg. from what i've read, the software correction may do other enhancements, but i haven't found these as apparent as the barrel correction. direct jpg from camera: http://www.flickr.com/photos/73894551 at N00/3541195208/ rwl (RAW) converted: http://www.flickr.com/photos/73894551 at N00/3541196214/ -rei -- Rei Shinozuka shino at panix.com Ridgewood, New Jersey